CN208281396U - A kind of electric car automatic shifting synchronizing device - Google Patents

A kind of electric car automatic shifting synchronizing device Download PDF

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Publication number
CN208281396U
CN208281396U CN201820925683.5U CN201820925683U CN208281396U CN 208281396 U CN208281396 U CN 208281396U CN 201820925683 U CN201820925683 U CN 201820925683U CN 208281396 U CN208281396 U CN 208281396U
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China
Prior art keywords
tooth
secure bond
driven tooth
external splines
wall
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Expired - Fee Related
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CN201820925683.5U
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Chinese (zh)
Inventor
冯崇伟
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Individual
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Individual
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Abstract

The utility model discloses electric car automatic shifting synchronizing devices, including set gradually driven tooth, secure bond tooth, rotatable conjunction gear and ring gear;The ontology of driven tooth is duplicate gear, including driven tooth steamboat and driven tooth bull wheel;Driven tooth steamboat outer wall is equipped with driven tooth external splines, and there are the second gaps between driven tooth external splines and driven tooth bull wheel;The outer wall of secure bond tooth is equipped with secure bond tooth external splines, the inner wall of secure bond tooth is equipped with secure bond tooth internal spline, and the side wall of driven tooth bull wheel, the inner wall of secure bond tooth, two adjacent groups driven tooth external splines and two neighboring secure bond tooth internal spline construct cavity;It is set in cavity there are two elastic component, flexible gap between two elastic components;Rotatable conjunction gear external splines, rotatable conjunction gear internal spline and rotatable combination flank plectrum are respectively equipped on the outer wall of rotatable conjunction gear, inner wall and side wall, in rotatable combination flank plectrum insertion elastic gap;The inner wall of ring gear is equipped with ring gear internal spline.

Description

A kind of electric car automatic shifting synchronizing device
Technical field
The utility model relates to auto parts manufacturing fields, fill more particularly to a kind of electric car automatic shifting is synchronous It sets.
Background technique
Part electric car currently on the market uses a kind of simple gear-changing device, main driven including setting gradually Tooth, conjunction gear and ring gear, wherein driven tooth is fixedly connected with conjunction gear;When shift, ring gear under the promotion of shift fork to from Movable tooth direction is mobile, and ring gear internal spline reaches shift purpose in conjunction with tooth engagement.If vehicle is travelling when shift, Ring gear and the revolving speed of driven tooth are inconsistent, and ring gear internal spline can generate hard hit with when combining tooth engagement.Hit number More, the damage of ring gear internal spline and conjunction gear will be very serious, and transmitting power can not be meshed together by resulting even in, and be caused Vehicle can not travel.
In view of this, special propose the utility model.
Utility model content
The purpose of the utility model is to provide a kind of electric car automatic shifting synchronizing device, when can reduce vehicle and putting into gear Gear impact, extend service life of gear, increase the comfort of driving.
To achieve the goals above, a kind of electric car automatic shifting synchronizing device provided by the utility model, feature It is, including sets gradually driven tooth, secure bond tooth, rotatable conjunction gear and ring gear;
The ontology of the driven tooth is duplicate gear, including driven tooth steamboat and driven tooth bull wheel;The driven tooth steamboat Outer wall is equipped with the equal driven tooth external splines of three groups of spacing, and the quantity of driven tooth external splines described in every group is two, described in two There are the first gaps between driven tooth external splines;
There are the second gaps between each driven tooth external splines and the bull wheel of the driven tooth;
Be uniformly provided with multiple secure bond tooth external splines on the outer wall of the secure bond tooth, the secure bond tooth it is interior Three secure bond tooth internal splines are uniformly provided on wall, three secure bond tooth internal splines are respectively fixedly connected in three institutes It states in the first gap;
The side wall of the driven tooth bull wheel, the inner wall of the secure bond tooth, driven tooth external splines described in two adjacent groups and Two neighboring secure bond tooth internal spline constructs cavity;
The cavity is three, elastic component there are two settings in each cavity, flexible between two elastic components Gap;
The outer wall of the rotatable conjunction gear is uniformly provided with multiple rotatable conjunction gear external splines, the rotatable conjunction gear Inner wall set there are three rotatable conjunction gear internal spline, set that there are three rotatable conjunction gears on the side wall of the rotatable conjunction gear Side plectrum, each rotatable combination flank plectrum are inserted into each elastic gap;
The inner wall of the ring gear is uniformly provided with the ring gear internal spline being engaged with the rotatable conjunction gear external splines.
Alternatively and preferably, in the axial direction of the driven tooth, the body thickness of the secure bond tooth is equal to described The width in the second gap.
Alternatively and preferably, in the axial direction of the driven tooth, the length of the secure bond tooth internal spline is equal to institute State the total length of driven tooth steamboat.
Alternatively and preferably, the cross-sectional width of the secure bond tooth internal spline is greater than the width in first gap.
Alternatively and preferably, the elastic component is spring.
Alternatively and preferably, the number of the quantity of the rotatable conjunction gear external splines and the secure bond tooth external splines It measures identical or at integral multiple relation.
Electric car automatic shifting synchronizing device provided by the utility model, has the following beneficial effects:
Traditional conjunction gear is divided into two by the utility model, that is, is divided into secure bond tooth and rotatable conjunction gear, wherein Secure bond tooth is responsible for restriction ring gear and relative rotation does not occur, and rotatable conjunction gear can rotate in restriction range and compress sky Intracavitary elastic component, both conjunction gears are all responsible for transmitting power.When ring gear internal spline hits rotatable conjunction gear external splines, It can be buffered by elastic component and absorb impact force, be then engaged again with secure bond tooth external splines, to prevent part Damage, extends the service life of gear, user does not feel as because gear has a gap and caused by the pause and transition in rhythm or melody sense hit repeatedly, Increase the comfort of shift.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of electric car automatic shifting device in the prior art;
Fig. 2 is the structural schematic diagram of the utility model embodiment electric car automatic shifting synchronizing device;
Fig. 3 is the explosive view of the synchronizing device of electric car automatic shifting shown in Fig. 2;
Fig. 4 is the assembling schematic diagram of driven tooth and secure bond tooth in Fig. 2;
Fig. 5 is driven tooth, the assembling schematic diagram of secure bond tooth and elastic component in Fig. 2;
Fig. 6 is the side view (clipped structure) of electric car automatic shifting synchronizing device in Fig. 2.
In figure:
1. driven tooth;2. conjunction gear;3. ring gear;4. ring gear internal spline;5. secure bond tooth;6. rotatable conjunction gear;7. Driven tooth external splines;8. driven tooth steamboat;9. driven tooth bull wheel;10. secure bond tooth external splines;11. flower in secure bond tooth Key;12. elastic component;13. rotatable combination flank plectrum;14. rotatable conjunction gear internal spline;15. flower outside rotatable conjunction gear Key;16. cavity.
Specific embodiment
In order to make those skilled in the art better understand the utility model, with reference to the accompanying drawing and specific embodiment party Formula is described in further detail the utility model.
In the description of the present invention, it should be understood that being limited using the words such as " first ", " second ", " third " Determine components, it is only for convenient for distinguishing to above-mentioned parts, there is no Stated otherwise such as, there is no special for above-mentioned word Meaning, therefore should not be understood as the limitation to scope of protection of the utility model." multiple " contain in the description of the present invention, Justice is at least two, such as two, three etc., unless otherwise specifically defined.
Additionally, it should be appreciated that the main body for the driven tooth mentioned in the present embodiment is duplicate gear, duplicate gear is two A gear links into an integrated entity, and one of gear is bull wheel, another gear is steamboat.
Fig. 1 is a kind of structural schematic diagram of electric car automatic shifting device in the prior art.
As shown in Figure 1, electric car automatic shifting device in the prior art includes: the driven tooth 1 set gradually, knot Close tooth 2 and ring gear 3.Wherein, multiple ring gear internal splines 4, ring gear internal spline 4 and conjunction gear 2 one are uniformly arranged in the inner wall of ring gear 3 One is corresponding.When the device works, ring gear 3 is moved to the left under the promotion of shift fork, ring gear internal spline 4 and conjunction gear 2 in ring gear 3 Engagement, to complete operation of putting into gear.This technical solution it is maximum the disadvantage is that, in vehicle traveling, ring gear 3 and driven tooth 1 Revolving speed is inconsistent, and when putting into gear, ring gear internal spline 4 and conjunction gear 2 are hit very serious, i.e., so-called in industry to beat tooth, with The damage of the increase of variable block number, ring gear internal spline 4 and conjunction gear 2 can be very serious, until can not be interlocked, so that not Power can be transmitted, travel vehicle can not, therefore uses the vehicle of this kind of device at present, is usually all that parking is put into gear, gives user Bring big inconvenience.
Fig. 2 is the structural schematic diagram of the utility model embodiment electric car automatic shifting synchronizing device;Fig. 3 is Fig. 2 institute Show the explosive view of electric car automatic shifting synchronizing device;Fig. 4 is the assembling schematic diagram of driven tooth and secure bond tooth in Fig. 2; Fig. 5 is driven tooth, the assembling schematic diagram of secure bond tooth and elastic component in Fig. 2;Fig. 6 is that electric car automatic shifting is same in Fig. 2 Walk the side view (clipped structure) of device.
As shown in 2,3,4,5 and 6, in the present embodiment, electric car automatic shifting synchronizing device, including set gradually from Movable tooth 1, secure bond tooth 5, rotatable conjunction gear 6 and ring gear 3;The ontology of the driven tooth 1 is duplicate gear, including driven Tooth steamboat 8 and driven tooth bull wheel 9;8 outer wall of the driven tooth steamboat driven tooth external splines 7 equal equipped with three groups of spacing, every group The quantity of the driven tooth external splines 7 is two, and there are the first gaps between two driven tooth external splines 7;It is each described from There are the second gaps between movable tooth external splines 7 and the driven tooth bull wheel 9;It is uniformly provided on the outer wall of the secure bond tooth 5 more A secure bond tooth external splines 10, is uniformly provided with three secure bond tooth internal splines 11 on the inner wall of the secure bond tooth 5, and three A secure bond tooth internal spline 11 is respectively fixedly connected in three first gaps;The side of the driven tooth bull wheel 9 Wall, the inner wall of the secure bond tooth 5, driven tooth external splines 7 and two neighboring secure bond tooth internal spline described in two adjacent groups 11 construct cavity 16;The cavity 16 is three, and there are two elastic component 12, two elasticity for setting in each cavity 16 Flexible gap between part 12;The outer wall of the rotatable conjunction gear 6 is uniformly provided with multiple rotatable conjunction gear external splines 15, The inner wall of the rotatable conjunction gear 6 is set there are three rotatable conjunction gear internal spline 14, on the side wall of the rotatable conjunction gear 6 If there are three rotatable combination flank plectrum 13, each rotatable combination flank plectrum 13 is inserted into each elastic gap In;The inner wall of the ring gear 3 is uniformly provided with the ring gear internal spline 4 being engaged with the rotatable conjunction gear external splines 15.
In the axial direction of the driven tooth, the body thickness of the secure bond tooth 5 is equal to the width in second gap.
In the axial direction of the driven tooth, the length of the secure bond tooth internal spline 11 is equal to the driven tooth steamboat 8 Total length.
The cross-sectional width of the secure bond tooth internal spline 11 is greater than the width in first gap.
The elastic component 12 is spring.
The quantity of the rotatable conjunction gear external splines 15 it is identical with the quantity of the secure bond tooth external splines 10 or at Integral multiple relation.
Specifically, this is the explosive view of all parts such as Fig. 3.Including driven tooth 1, secure bond tooth 5, elastic component 12 can Rotate conjunction gear 6, ring gear 3.Driven tooth 1 is duplicate gear, including driven tooth bull wheel 9 and driven tooth steamboat 8, they are one It is whole.The outer wall of driven tooth steamboat 8 is uniformly provided with 3 groups of driven tooth external splines 7 in the side far from driven tooth bull wheel 9, every group by Two driven tooth external splines 7 constitute and there are certain gaps each other.All driven tooth external splines 7 and driven tooth bull wheel 9 Between also there are gaps.The outer wall of secure bond tooth 5 is uniformly provided with secure bond tooth external splines 10, and inner wall is uniformly provided with 3 admittedly Determine conjunction gear internal spline 11.The body thickness of secure bond tooth 5 be equal between driven tooth external splines 7 and driven tooth bull wheel 9 away from From.The total length of secure bond tooth internal spline 11 is equal to the total length of driven tooth steamboat 8.The section of secure bond tooth internal spline 11 Width is slightly larger than the gap between two driven tooth external splines 7 within every group.Secure bond tooth internal spline 11 can be in liquid It is inserted into the gap between two within every group driven tooth external splines 7, ensures that so solid under the immense pressure of press Determine conjunction gear 5 and driven tooth 1 is closely press fit together, each other there is no relative movement or rotation, one can be considered as It is whole.
The outer wall of rotatable conjunction gear 6 is uniformly arranged rotatable conjunction gear external splines 15, outside quantity and secure bond tooth Spline 10 is identical or at integral multiple relation.The inner wall of rotatable conjunction gear 6 is equipped with 3 rotatable conjunction gear internal splines 14, can The side wall for rotating conjunction gear 6 is equipped with 3 rotatable combination flank plectrums 13.The body thickness of rotatable conjunction gear 6, which is equal to, fixes Conjunction gear internal spline 11 is higher by the main part of secure bond tooth 5.
The inner wall of ring gear 3 is uniformly provided with ring gear internal spline 4, and quantity and rotatable conjunction gear external splines 15 are identical.
Specifically, being scene when driven tooth 1 and secure bond tooth 5 are press fit together such as Fig. 4.We see the left side, pressure After being filled with, two side wall of driven tooth bull wheel 9, the inner wall of secure bond tooth 5, left and right driven tooth external splines 7, and left and right two are solid Determine conjunction gear internal spline 11, define a cavity 16 jointly, we have available 3 cavitys 16 altogether.In each cavity 16 Two elastic components 12. can be placed to be put into after elastic component 12, Fig. 5 can be obtained.
Specifically, being the scene after the installation of driven tooth 1, secure bond tooth 5 and elastic component 12 such as Fig. 5.On each It states and placed two elastic components 12 in cavity 16.The elastic component 12 on the left side contacts the secure bond tooth internal spline 11 on the left side to the left, And the lateral interception of the driven tooth external splines 7 by the left side, it prevents from falling off outward and interfere with rotatable conjunction gear internal spline 14.It is right The elastic component 12 on side contacts to the right the secure bond tooth internal spline 11 on the right, and the driven tooth external splines 7 by the right is lateral It intercepts, prevents from falling off outward and interfere with rotatable conjunction gear internal spline 14, there are gaps between two elastic components 12 in left and right.
Rotatable combination flank plectrum 13 is just inserted into the gap between above-mentioned two elastic component 12.When can revolve After turning the installation of conjunction gear 6, Fig. 2 can be obtained.
It is in Fig. 2 from gained in terms of-x-axis direction specifically, such as Fig. 6.To put it more simply, the tooth on 1 outer ring of driven tooth saves Fall.In the case where not by impact force, two elastic components 12 are not all compressed, rotatable conjunction gear external splines 15 and just Intermediate secure bond tooth external splines 10 is overlapped.When ring gear internal spline 4 contacts to the right and hits rotatable conjunction gear external splines 15 When, the elastic component 12 on the right is compressed by rotatable combination flank plectrum 13, until rotatable conjunction gear internal spline 14 is encountered The driven tooth external splines 7 on the right, the elastic component 12 on the right is no longer compressed at this time, and rotatable conjunction gear external splines 15 is just and right The secure bond tooth external splines 10 on side is overlapped.Ring gear internal spline 4 can continue the insertion middle that moves ahead under the promotion of shift fork Secure bond tooth external splines 10 and the right secure bond tooth external splines 10 between, completion is put into gear operation.
At this moment, ring gear internal spline 4 is just in the secure bond tooth external splines 10 of middle and the secure bond tooth on the right In small gaps between 10, relative rotation there will be no between ring gear 3 and secure bond tooth 5, user is giving throttle and pine tar When door, will not feel again because gear has a gap and caused by the pause and transition in rhythm or melody sense hit repeatedly, driver comfort increases.
In addition, when rotatable conjunction gear internal spline 14 encounters the driven tooth external splines 7 on the right, so that it may transmit power ?.Therefore, as long as ring gear 3 and rotatable conjunction gear 6 are engaged, gear is exactly hung up, gear will not be fallen again.
The elastic component 12 on the right is analyzed again.When rotatable conjunction gear internal spline 14 encounters the driven tooth external splines 7 on the right When, the elastic component 12 on the right would not be compressed again, prevent from damaging under weight.When ring gear internal spline 4 continues to move forward into To after the small gaps between the secure bond tooth external splines 10 and the secure bond tooth 10 on the right of middle, the bullet on the right Property part 12 will not bounce again.It should be understood that in the present embodiment, elastic component 12 is spring, the fatigue life of spring be by What the number for being compressed and being bounced according to own calculated, that is to say, that the number that spring is compressed and bounced is more, and spring makes It is shorter with the service life.Therefore, the number that the spring in the present embodiment is compressed and bounced, being with variable block number, and with stepping on The number of throttle and accelerator releasing is unrelated, thus effectively extends the service life of elastic component 12.
Equally, when ring gear internal spline 4 contacts to the left and hits rotatable conjunction gear external splines 15, the elasticity on the left side Part 12 is compressed, and rotatable conjunction gear internal spline 14 encounters the driven tooth external splines 7 on the left side, and rotatable conjunction gear external splines 15 is just Good and the left side the secure bond tooth external splines 10 is overlapped.Ring gear internal spline 4 is inserted into the secure bond tooth external splines 10 and just on the left side Between intermediate secure bond tooth external splines 10, operation of putting into gear is completed.
Electric car automatic shifting synchronizing device provided by the utility model is described in detail above.Herein Specific case is applied to be expounded the principles of the present invention and embodiment, the explanation of above example is only intended to Help understands the core concept of the utility model.It should be pointed out that for those skilled in the art, not taking off Under the premise of from the utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification It also falls into the protection scope of the utility model claims.

Claims (6)

1. a kind of electric car automatic shifting synchronizing device, which is characterized in that including set gradually driven tooth, secure bond tooth, Rotatable conjunction gear and ring gear;
The ontology of the driven tooth is duplicate gear, including driven tooth steamboat and driven tooth bull wheel;The driven tooth steamboat outer wall Equipped with the equal driven tooth external splines of three groups of spacing, the quantity of driven tooth external splines described in every group is two, and two described driven There are the first gaps between tooth external splines;
There are the second gaps between each driven tooth external splines and the driven tooth bull wheel;
Multiple secure bond tooth external splines are uniformly provided on the outer wall of the secure bond tooth, on the inner wall of the secure bond tooth Three secure bond tooth internal splines are uniformly provided with, three secure bond tooth internal splines are respectively fixedly connected at three described In one gap;
The side wall of the driven tooth bull wheel, the inner wall of the secure bond tooth, driven tooth external splines described in two adjacent groups and adjacent Two secure bond tooth internal splines construct cavity;
The cavity is three, elastic component there are two settings in each cavity, flexible gap between two elastic components;
The outer wall of the rotatable conjunction gear is uniformly provided with multiple rotatable conjunction gear external splines, the rotatable conjunction gear it is interior Wall is set there are three rotatable conjunction gear internal spline, sets that there are three rotatable combination flanks to dial on the side wall of the rotatable conjunction gear Piece, each rotatable combination flank plectrum are inserted into each elastic gap;
The inner wall of the ring gear is uniformly provided with the ring gear internal spline being engaged with the rotatable conjunction gear external splines.
2. electric car automatic shifting synchronizing device according to claim 1, which is characterized in that in the axis of the driven tooth Upwards, the body thickness of the secure bond tooth is equal to the width in second gap.
3. electric car automatic shifting synchronizing device according to claim 1, which is characterized in that in the axis of the driven tooth Upwards, the length of the secure bond tooth internal spline is equal to the total length of the driven tooth steamboat.
4. electric car automatic shifting synchronizing device according to claim 1, the section of the secure bond tooth internal spline Width is greater than the width in first gap.
5. electric car automatic shifting synchronizing device according to claim 1, which is characterized in that the elastic component is bullet Spring.
6. electric car automatic shifting synchronizing device according to claim 1, which is characterized in that the rotatable conjunction gear The quantity of external splines is identical with the quantity of the secure bond tooth external splines or at integral multiple relation.
CN201820925683.5U 2018-06-14 2018-06-14 A kind of electric car automatic shifting synchronizing device Expired - Fee Related CN208281396U (en)

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CN201820925683.5U CN208281396U (en) 2018-06-14 2018-06-14 A kind of electric car automatic shifting synchronizing device

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CN201820925683.5U CN208281396U (en) 2018-06-14 2018-06-14 A kind of electric car automatic shifting synchronizing device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114412969A (en) * 2022-01-30 2022-04-29 重庆百花园齿轮传动技术研究所 Gear shifting transmission structure with different rotating speeds between gear pairs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114412969A (en) * 2022-01-30 2022-04-29 重庆百花园齿轮传动技术研究所 Gear shifting transmission structure with different rotating speeds between gear pairs

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181225

Termination date: 20200614

CF01 Termination of patent right due to non-payment of annual fee